or saving benghazi, i think it is helpful. that's the sort of debate that is going on. i told you something about american foreign policy. we can't walk away from this don't make drastic decisions and pull back because of this crisis. there's a battle going on within arab countries, muslim countries, it's going to be their own battle and we have to understand we don't want to support the ones who are the extremists who will have the advantage if we do. >> brown: very interesting developments, shibley telhami and lawrence pintak, thank you very much. >> pleasure. >> woodruff: still to come on the newshour: hazing on college campuses; a syrian town caught in the crossfire; the presidential contest as romney releases tax forms; plus, shields and brooks. but first, the other news of the day. here's kwame holman. >> holman: all 33,000 u.s. troop sent to afghanistan as part of a military surge now have left the country. the official announcement came today from defense secretary leon panetta. president obama ordered the extra forces